Boat Seat Swivel Plate 360-Degree Rotation Swivel Seat Base Marine Hardware Aluminum Alloy Slotted Mounting Holes

This marine hardware piece is a boat seat base with a rotary seat plate design, made for mounting and supporting a seat in marine applications. The seat swivel allows 360-degree turning, giving the seat a full rotating motion for easier repositioning and flexible use on board. Built from aluminum alloy with a metal turntable structure, this swivel seat base combines a square top and bottom plate with rounded corners for a clean, practical profile. Four slotted mounting holes on each plate help the swivel seat base align with installation points and support a more adaptable attachment setup. Measuring about 6.7 in by 6.7 in and about 1.1 in high, with a top width of about 5.9 in, this boat seat base offers a compact footprint for seat support.